linux-kernel - [PATCH] btbcm: disable read tx power for MacBook Air 8,1 and 8,2

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Date:   Mon, 3 Jan 2022 13:28:42 +0000
From:   Aditya Garg <gargaditya08@...e.com>
To:     Marcel Holtmann <marcel@...tmann.org>,
        Luiz Augusto von Dentz <luiz.dentz@...il.com>,
        Johan Hedberg <johan.hedberg@...el.com>
CC:     Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        "linux-bluetooth@...r.kernel.org" <linux-bluetooth@...r.kernel.org>,
        Orlando Chamberlain <redecorating@...tonmail.com>,
        "admin@...eit.net" <admin@...eit.net>,
        "stable@...r.kernel.org" <stable@...r.kernel.org>
Subject: [PATCH] btbcm: disable read tx power for MacBook Air 8,1 and 8,2

From: Aditya Garg <gargaditya08@...e.com>

The MacBook Air 8,1 and 8,2 also need querying of LE Tx power
to be disabled for Bluetooth to work.

Signed-off-by: Aditya Garg <gargaditya08@...e.com>
Cc: stable@...r.kernel.org
---
 drivers/bluetooth/btbcm.c | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/drivers/bluetooth/btbcm.c b/drivers/bluetooth/btbcm.c
index 07fabaa5a..d9ceca7a7 100644
--- a/drivers/bluetooth/btbcm.c
+++ b/drivers/bluetooth/btbcm.c
@@ -363,6 +363,18 @@ static const struct dmi_system_id disable_broken_read_transmit_power[] = {
 			DMI_MATCH(DMI_PRODUCT_NAME, "MacBookPro16,4"),
 		},
 	},
+	{
+		 .matches = {
+			DMI_MATCH(DMI_BOARD_VENDOR, "Apple Inc."),
+			DMI_MATCH(DMI_PRODUCT_NAME, "MacBookAir8,1"),
+		},
+	},
+	{
+		 .matches = {
+			DMI_MATCH(DMI_BOARD_VENDOR, "Apple Inc."),
+			DMI_MATCH(DMI_PRODUCT_NAME, "MacBookAir8,2"),
+		},
+	},
 	{
 		 .matches = {
 			DMI_MATCH(DMI_BOARD_VENDOR, "Apple Inc."),
-- 
2.25.1